Torsten BögershausenThe function git_wcwidth() returns for a given unicode code point the width on the display: -1 for control characters, 0 for combining or other non-visible code points 1 for e.g. ASCII 2 for double-width code points.
This table had been originally been extracted for one Unicode version, probably 3.2.
Make it possible to update the to a later version of Unicode:
Factor out the table from utf8.c into unicode_width.h and add the script update_unicode.sh to update the table based on the latest Unicode specification files.
Thanks to Peter Krefting <peter@softwolves.pp.se> and Kevin Bracey <kevin@bracey.fi> for helping with their Unicode knowledge
Signed-off-by: Torsten Bögershausen <tboegi@web.de> --- .gitignore | 1 + Makefile | 1 + unicode_width.h | 288 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ update_unicode.sh | 37 +++++++ utf8.c | 61 +----------- 5 files changed, 329 insertions(+), 59 deletions(-) create mode 100644 unicode_width.h create mode 100755 update_unicode.sh
Show changes to 5 files +329 −59
.gitignore, Makefile, unicode_width.h, update_unicode.sh, utf8.c
diff --git a/.gitignore b/.gitignore index dc600f9..42294e5 100644 --- a/.gitignore +++ b/.gitignore @@ -226,6 +226,7 @@ /config.mak.autogen /config.mak.append /configure +/unicode /tags /TAGS /cscope* diff --git a/Makefile b/Makefile index a53f3a8..2e2077a 100644 --- a/Makefile +++ b/Makefile @@ -730,6 +730,7 @@ LIB_H += transport.h LIB_H += tree-walk.h LIB_H += tree.h LIB_H += unpack-trees.h +LIB_H += unicode_width.h LIB_H += url.h LIB_H += urlmatch.h LIB_H += userdiff.h diff --git a/unicode_width.h b/unicode_width.h new file mode 100644 index 0000000..4db7803 --- /dev/null +++ b/unicode_width.h @@ -0,0 +1,288 @@ +static const struct interval zero_width[] = { +{ 0x0300, 0x036F }, +{ 0x0483, 0x0489 }, +{ 0x0591, 0x05BD }, +{ 0x05BF, 0x05BF }, +{ 0x05C1, 0x05C2 }, +{ 0x05C4, 0x05C5 }, +{ 0x05C7, 0x05C7 }, +{ 0x0600, 0x0604 }, +{ 0x0610, 0x061A }, +{ 0x061C, 0x061C }, +{ 0x064B, 0x065F }, +{ 0x0670, 0x0670 }, +{ 0x06D6, 0x06DD }, +{ 0x06DF, 0x06E4 }, +{ 0x06E7, 0x06E8 }, +{ 0x06EA, 0x06ED }, +{ 0x070F, 0x070F }, +{ 0x0711, 0x0711 }, +{ 0x0730, 0x074A }, +{ 0x07A6, 0x07B0 }, +{ 0x07EB, 0x07F3 }, +{ 0x0816, 0x0819 }, +{ 0x081B, 0x0823 }, +{ 0x0825, 0x0827 }, +{ 0x0829, 0x082D }, +{ 0x0859, 0x085B }, +{ 0x08E4, 0x08FE }, +{ 0x0900, 0x0902 }, +{ 0x093A, 0x093A }, +{ 0x093C, 0x093C }, +{ 0x0941, 0x0948 }, +{ 0x094D, 0x094D }, +{ 0x0951, 0x0957 }, +{ 0x0962, 0x0963 }, +{ 0x0981, 0x0981 }, +{ 0x09BC, 0x09BC }, +{ 0x09C1, 0x09C4 }, +{ 0x09CD, 0x09CD }, +{ 0x09E2, 0x09E3 }, +{ 0x0A01, 0x0A02 }, +{ 0x0A3C, 0x0A3C }, +{ 0x0A41, 0x0A42 }, +{ 0x0A47, 0x0A48 }, +{ 0x0A4B, 0x0A4D }, +{ 0x0A51, 0x0A51 }, +{ 0x0A70, 0x0A71 }, +{ 0x0A75, 0x0A75 }, +{ 0x0A81, 0x0A82 }, +{ 0x0ABC, 0x0ABC }, +{ 0x0AC1, 0x0AC5 }, +{ 0x0AC7, 0x0AC8 }, +{ 0x0ACD, 0x0ACD }, +{ 0x0AE2, 0x0AE3 }, +{ 0x0B01, 0x0B01 }, +{ 0x0B3C, 0x0B3C }, +{ 0x0B3F, 0x0B3F }, +{ 0x0B41, 0x0B44 }, +{ 0x0B4D, 0x0B4D }, +{ 0x0B56, 0x0B56 }, +{ 0x0B62, 0x0B63 }, +{ 0x0B82, 0x0B82 }, +{ 0x0BC0, 0x0BC0 }, +{ 0x0BCD, 0x0BCD }, +{ 0x0C3E, 0x0C40 }, +{ 0x0C46, 0x0C48 }, +{ 0x0C4A, 0x0C4D }, +{ 0x0C55, 0x0C56 }, +{ 0x0C62, 0x0C63 }, +{ 0x0CBC, 0x0CBC }, +{ 0x0CBF, 0x0CBF }, +{ 0x0CC6, 0x0CC6 }, +{ 0x0CCC, 0x0CCD }, +{ 0x0CE2, 0x0CE3 }, +{ 0x0D41, 0x0D44 }, +{ 0x0D4D, 0x0D4D }, +{ 0x0D62, 0x0D63 }, +{ 0x0DCA, 0x0DCA }, +{ 0x0DD2, 0x0DD4 }, +{ 0x0DD6, 0x0DD6 }, +{ 0x0E31, 0x0E31 }, +{ 0x0E34, 0x0E3A }, +{ 0x0E47, 0x0E4E }, +{ 0x0EB1, 0x0EB1 }, +{ 0x0EB4, 0x0EB9 }, +{ 0x0EBB, 0x0EBC }, +{ 0x0EC8, 0x0ECD }, +{ 0x0F18, 0x0F19 }, +{ 0x0F35, 0x0F35 }, +{ 0x0F37, 0x0F37 }, +{ 0x0F39, 0x0F39 }, +{ 0x0F71, 0x0F7E }, +{ 0x0F80, 0x0F84 }, +{ 0x0F86, 0x0F87 }, +{ 0x0F8D, 0x0F97 }, +{ 0x0F99, 0x0FBC }, +{ 0x0FC6, 0x0FC6 }, +{ 0x102D, 0x1030 }, +{ 0x1032, 0x1037 }, +{ 0x1039, 0x103A }, +{ 0x103D, 0x103E }, +{ 0x1058, 0x1059 }, +{ 0x105E, 0x1060 }, +{ 0x1071, 0x1074 }, +{ 0x1082, 0x1082 }, +{ 0x1085, 0x1086 }, +{ 0x108D, 0x108D }, +{ 0x109D, 0x109D }, +{ 0x1160, 0x11FF }, +{ 0x135D, 0x135F }, +{ 0x1712, 0x1714 }, +{ 0x1732, 0x1734 }, +{ 0x1752, 0x1753 }, +{ 0x1772, 0x1773 }, +{ 0x17B4, 0x17B5 }, +{ 0x17B7, 0x17BD }, +{ 0x17C6, 0x17C6 }, +{ 0x17C9, 0x17D3 }, +{ 0x17DD, 0x17DD }, +{ 0x180B, 0x180E }, +{ 0x18A9, 0x18A9 }, +{ 0x1920, 0x1922 }, +{ 0x1927, 0x1928 }, +{ 0x1932, 0x1932 }, +{ 0x1939, 0x193B }, +{ 0x1A17, 0x1A18 }, +{ 0x1A1B, 0x1A1B }, +{ 0x1A56, 0x1A56 }, +{ 0x1A58, 0x1A5E }, +{ 0x1A60, 0x1A60 }, +{ 0x1A62, 0x1A62 }, +{ 0x1A65, 0x1A6C }, +{ 0x1A73, 0x1A7C }, +{ 0x1A7F, 0x1A7F }, +{ 0x1B00, 0x1B03 }, +{ 0x1B34, 0x1B34 }, +{ 0x1B36, 0x1B3A }, +{ 0x1B3C, 0x1B3C }, +{ 0x1B42, 0x1B42 }, +{ 0x1B6B, 0x1B73 }, +{ 0x1B80, 0x1B81 }, +{ 0x1BA2, 0x1BA5 }, +{ 0x1BA8, 0x1BA9 }, +{ 0x1BAB, 0x1BAB }, +{ 0x1BE6, 0x1BE6 }, +{ 0x1BE8, 0x1BE9 }, +{ 0x1BED, 0x1BED }, +{ 0x1BEF, 0x1BF1 }, +{ 0x1C2C, 0x1C33 }, +{ 0x1C36, 0x1C37 }, +{ 0x1CD0, 0x1CD2 }, +{ 0x1CD4, 0x1CE0 }, +{ 0x1CE2, 0x1CE8 }, +{ 0x1CED, 0x1CED }, +{ 0x1CF4, 0x1CF4 }, +{ 0x1DC0, 0x1DE6 }, +{ 0x1DFC, 0x1DFF }, +{ 0x200B, 0x200F }, +{ 0x202A, 0x202E }, +{ 0x2060, 0x2064 }, +{ 0x2066, 0x206F }, +{ 0x20D0, 0x20F0 }, +{ 0x2CEF, 0x2CF1 }, +{ 0x2D7F, 0x2D7F }, +{ 0x2DE0, 0x2DFF }, +{ 0x302A, 0x302D }, +{ 0x3099, 0x309A }, +{ 0xA66F, 0xA672 }, +{ 0xA674, 0xA67D }, +{ 0xA69F, 0xA69F }, +{ 0xA6F0, 0xA6F1 }, +{ 0xA802, 0xA802 }, +{ 0xA806, 0xA806 }, +{ 0xA80B, 0xA80B }, +{ 0xA825, 0xA826 }, +{ 0xA8C4, 0xA8C4 }, +{ 0xA8E0, 0xA8F1 }, +{ 0xA926, 0xA92D }, +{ 0xA947, 0xA951 }, +{ 0xA980, 0xA982 }, +{ 0xA9B3, 0xA9B3 }, +{ 0xA9B6, 0xA9B9 }, +{ 0xA9BC, 0xA9BC }, +{ 0xAA29, 0xAA2E }, +{ 0xAA31, 0xAA32 }, +{ 0xAA35, 0xAA36 }, +{ 0xAA43, 0xAA43 }, +{ 0xAA4C, 0xAA4C }, +{ 0xAAB0, 0xAAB0 }, +{ 0xAAB2, 0xAAB4 }, +{ 0xAAB7, 0xAAB8 }, +{ 0xAABE, 0xAABF }, +{ 0xAAC1, 0xAAC1 }, +{ 0xAAEC, 0xAAED }, +{ 0xAAF6, 0xAAF6 }, +{ 0xABE5, 0xABE5 }, +{ 0xABE8, 0xABE8 }, +{ 0xABED, 0xABED }, +{ 0xFB1E, 0xFB1E }, +{ 0xFE00, 0xFE0F }, +{ 0xFE20, 0xFE26 }, +{ 0xFEFF, 0xFEFF }, +{ 0xFFF9, 0xFFFB }, +{ 0x101FD, 0x101FD }, +{ 0x10A01, 0x10A03 }, +{ 0x10A05, 0x10A06 }, +{ 0x10A0C, 0x10A0F }, +{ 0x10A38, 0x10A3A }, +{ 0x10A3F, 0x10A3F }, +{ 0x11001, 0x11001 }, +{ 0x11038, 0x11046 }, +{ 0x11080, 0x11081 }, +{ 0x110B3, 0x110B6 }, +{ 0x110B9, 0x110BA }, +{ 0x110BD, 0x110BD }, +{ 0x11100, 0x11102 }, +{ 0x11127, 0x1112B }, +{ 0x1112D, 0x11134 }, +{ 0x11180, 0x11181 }, +{ 0x111B6, 0x111BE }, +{ 0x116AB, 0x116AB }, +{ 0x116AD, 0x116AD }, +{ 0x116B0, 0x116B5 }, +{ 0x116B7, 0x116B7 }, +{ 0x16F8F, 0x16F92 }, +{ 0x1D167, 0x1D169 }, +{ 0x1D173, 0x1D182 }, +{ 0x1D185, 0x1D18B }, +{ 0x1D1AA, 0x1D1AD }, +{ 0x1D242, 0x1D244 }, +{ 0xE0001, 0xE0001 }, +{ 0xE0020, 0xE007F }, +{ 0xE0100, 0xE01EF } +}; +static const struct interval double_width[] = { +{ /* plane */ 0x0, 0x1C }, +{ /* plane */ 0x1C, 0x21 }, +{ /* plane */ 0x21, 0x22 }, +{ /* plane */ 0x22, 0x23 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ /* plane */ 0x0, 0x0 }, +{ 0x1100, 0x115F }, +{ 0x2329, 0x232A }, +{ 0x2E80, 0x2E99 }, +{ 0x2E9B, 0x2EF3 }, +{ 0x2F00, 0x2FD5 }, +{ 0x2FF0, 0x2FFB }, +{ 0x3000, 0x303E }, +{ 0x3041, 0x3096 }, +{ 0x3099, 0x30FF }, +{ 0x3105, 0x312D }, +{ 0x3131, 0x318E }, +{ 0x3190, 0x31BA }, +{ 0x31C0, 0x31E3 }, +{ 0x31F0, 0x321E }, +{ 0x3220, 0x3247 }, +{ 0x3250, 0x32FE }, +{ 0x3300, 0x4DBF }, +{ 0x4E00, 0xA48C }, +{ 0xA490, 0xA4C6 }, +{ 0xA960, 0xA97C }, +{ 0xAC00, 0xD7A3 }, +{ 0xF900, 0xFAFF }, +{ 0xFE10, 0xFE19 }, +{ 0xFE30, 0xFE52 }, +{ 0xFE54, 0xFE66 }, +{ 0xFE68, 0xFE6B }, +{ 0xFF01, 0xFF60 }, +{ 0xFFE0, 0xFFE6 }, +{ 0x1B000, 0x1B001 }, +{ 0x1F200, 0x1F202 }, +{ 0x1F210, 0x1F23A }, +{ 0x1F240, 0x1F248 }, +{ 0x1F250, 0x1F251 }, +{ 0x20000, 0x2FFFD }, +{ 0x30000, 0x3FFFD } +}; diff --git a/update_unicode.sh b/update_unicode.sh new file mode 100755 index 0000000..000b937 --- /dev/null +++ b/update_unicode.sh @@ -0,0 +1,37 @@ +#!/bin/sh +#See http://www.unicode.org/reports/tr44/ +# +#Me Enclosing_Mark an enclosing combining mark +#Mn Nonspacing_Mark a nonspacing combining mark (zero advance width) +#Cf Format a format control character +# +UNICODEWIDTH_H=../unicode_width.h +if ! test -d unicode; then + mkdir unicode +fi && +( cd unicode && + if ! test -f UnicodeData.txt; then + wget http://www.unicode.org/Public/UCD/latest/ucd/UnicodeData.txt + fi && + if ! test -f EastAsianWidth.txt; then + wget http://www.unicode.org/Public/UCD/latest/ucd/EastAsianWidth.txt + fi && + if ! test -d uniset; then + git clone https://github.com/depp/uniset.git + fi && + ( + cd uniset && + if ! test -x uniset; then + autoreconf -i && + ./configure --enable-warnings=-Werror CFLAGS='-O0 -ggdb' + fi && + make + ) && + echo "static const struct interval zero_width[] = {" >$UNICODEWIDTH_H && + UNICODE_DIR=. ./uniset/uniset --32 cat:Me,Mn,Cf + U+1160..U+11FF - U+00AD | + grep -v plane >>$UNICODEWIDTH_H && + echo "};" >>$UNICODEWIDTH_H && + echo "static const struct interval double_width[] = {" >>$UNICODEWIDTH_H && + UNICODE_DIR=. ./uniset/uniset --32 eaw:F,W >>$UNICODEWIDTH_H && + echo "};" >>$UNICODEWIDTH_H +) diff --git a/utf8.c b/utf8.c index b5d8136..b30790d 100644 --- a/utf8.c +++ b/utf8.c @@ -80,65 +80,8 @@ static int git_wcwidth(ucs_char_t ch) { /* * Sorted list of non-overlapping intervals of non-spacing characters, - * generated by - * "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c". */ - static const struct interval combining[] = { - { 0x0300, 0x036F }, { 0x0483, 0x0489 }, { 0x0591, 0x05BD }, - { 0x05BF, 0x05BF }, { 0x05C1, 0x05C2 }, { 0x05C4, 0x05C5 }, - { 0x05C7, 0x05C7 }, { 0x0600, 0x0604 }, { 0x0610, 0x061A }, - { 0x064B, 0x065F }, { 0x0670, 0x0670 }, { 0x06D6, 0x06E4 }, - { 0x06E7, 0x06E8 }, { 0x06EA, 0x06ED }, { 0x070F, 0x070F }, - { 0x0711, 0x0711 }, { 0x0730, 0x074A }, { 0x07A6, 0x07B0 }, - { 0x0901, 0x0902 }, { 0x093C, 0x093C }, { 0x0941, 0x0948 }, - { 0x094D, 0x094D }, { 0x0951, 0x0954 }, { 0x0962, 0x0963 }, - { 0x0981, 0x0981 }, { 0x09BC, 0x09BC }, { 0x09C1, 0x09C4 }, - { 0x09CD, 0x09CD }, { 0x09E2, 0x09E3 }, { 0x0A01, 0x0A02 }, - { 0x0A3C, 0x0A3C }, { 0x0A41, 0x0A42 }, { 0x0A47, 0x0A48 }, - { 0x0A4B, 0x0A4D }, { 0x0A70, 0x0A71 }, { 0x0A81, 0x0A82 }, - { 0x0ABC, 0x0ABC }, { 0x0AC1, 0x0AC5 }, { 0x0AC7, 0x0AC8 }, - { 0x0ACD, 0x0ACD }, { 0x0AE2, 0x0AE3 }, { 0x0B01, 0x0B01 }, - { 0x0B3C, 0x0B3C }, { 0x0B3F, 0x0B3F }, { 0x0B41, 0x0B43 }, - { 0x0B4D, 0x0B4D }, { 0x0B56, 0x0B56 }, { 0x0B82, 0x0B82 }, - { 0x0BC0, 0x0BC0 }, { 0x0BCD, 0x0BCD }, { 0x0C3E, 0x0C40 }, - { 0x0C46, 0x0C48 }, { 0x0C4A, 0x0C4D }, { 0x0C55, 0x0C56 }, - { 0x0CBC, 0x0CBC }, { 0x0CBF, 0x0CBF }, { 0x0CC6, 0x0CC6 }, - { 0x0CCC, 0x0CCD }, { 0x0D41, 0x0D43 }, { 0x0D4D, 0x0D4D }, - { 0x0DCA, 0x0DCA }, { 0x0DD2, 0x0DD4 }, { 0x0DD6, 0x0DD6 }, - { 0x0E31, 0x0E31 }, { 0x0E34, 0x0E3A }, { 0x0E47, 0x0E4E }, - { 0x0EB1, 0x0EB1 }, { 0x0EB4, 0x0EB9 }, { 0x0EBB, 0x0EBC }, - { 0x0EC8, 0x0ECD }, { 0x0F18, 0x0F19 }, { 0x0F35, 0x0F35 }, - { 0x0F37, 0x0F37 }, { 0x0F39, 0x0F39 }, { 0x0F71, 0x0F7E }, - { 0x0F80, 0x0F84 }, { 0x0F86, 0x0F87 }, { 0x0F90, 0x0F97 }, - { 0x0F99, 0x0FBC }, { 0x0FC6, 0x0FC6 }, { 0x102D, 0x1030 }, - { 0x1032, 0x1032 }, { 0x1036, 0x1037 }, { 0x1039, 0x1039 }, - { 0x1058, 0x1059 }, { 0x1160, 0x11FF }, { 0x1712, 0x1714 }, - { 0x1732, 0x1734 }, { 0x1752, 0x1753 }, { 0x1772, 0x1773 }, - { 0x17B4, 0x17B5 }, { 0x17B7, 0x17BD }, { 0x17C6, 0x17C6 }, - { 0x17C9, 0x17D3 }, { 0x17DD, 0x17DD }, { 0x180B, 0x180D }, - { 0x18A9, 0x18A9 }, { 0x1920, 0x1922 }, { 0x1927, 0x1928 }, - { 0x1932, 0x1932 }, { 0x1939, 0x193B }, { 0x200B, 0x200F }, - { 0x202A, 0x202E }, { 0x2060, 0x2063 }, { 0x206A, 0x206F }, - { 0x20D0, 0x20EA }, { 0x302A, 0x302F }, { 0x3099, 0x309A }, - { 0xFB1E, 0xFB1E }, { 0xFE00, 0xFE0F }, { 0xFE20, 0xFE23 }, - { 0xFEFF, 0xFEFF }, { 0xFFF9, 0xFFFB }, { 0x1D167, 0x1D169 }, - { 0x1D173, 0x1D182 }, { 0x1D185, 0x1D18B }, - { 0x1D1AA, 0x1D1AD }, { 0xE0001, 0xE0001 }, - { 0xE0020, 0xE007F }, { 0xE0100, 0xE01EF } - }; - static const struct interval double_width[] = { - { 0x1100, 0x115F }, - { 0x2329, 0x232A }, - { 0x2E80, 0x303E }, - { 0x3040, 0xA4CF }, - { 0xAC00, 0xD7A3 }, - { 0xF900, 0xFAFF }, - { 0xFE30, 0xFE6F }, - { 0xFF00, 0xFF60 }, - { 0xFFE0, 0xFFE6 }, - { 0x20000, 0x2FFFD }, - { 0x30000, 0x3FFFD } - }; +#include "unicode_width.h" /* test for 8-bit control characters */ if (ch == 0) @@ -147,7 +90,7 @@ static int git_wcwidth(ucs_char_t ch) return -1; /* binary search in table of non-spacing characters */ - if (bisearch(ch, combining, sizeof(combining) + if (bisearch(ch, zero_width, sizeof(zero_width) / sizeof(struct interval) - 1)) return 0;
-- 1.9.2.691.g8d8dc6d
